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Nuclear facility retired human body exposure dose evaluation method

A nuclear facility and dose technology, applied in the field of radiation protection, can solve the problems of difficulty in use, increase the exposure dose of workers, lack of exposure, etc., and achieve the effects of reducing psychological burden, optimizing radiation protection, and facilitating working conditions.

Pending Publication Date: 2022-03-18
DMS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the dose estimation of the existing technology is not variable, and it lacks the treatment of the influence of the position change of the facility equipment during the decommissioning operation of the nuclear facility. However, during the decommissioning operation of the nuclear facility, it is inevitable that some The radiation source in the facility is exposed, that is, the radiation field will continue to change as the operation progresses, and this change will mostly increase the exposure dose of the operator. is difficult to use effectively

Method used

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  • Nuclear facility retired human body exposure dose evaluation method
  • Nuclear facility retired human body exposure dose evaluation method
  • Nuclear facility retired human body exposure dose evaluation method

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Experimental program
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Effect test

Embodiment 1

[0060] According to a preferred embodiment, the dose assessment system can visualize the invisible radiation field so that the user can directly observe the distribution state of the radiation field, and can perform operations such as rotation and sectioning on the radiation field model so as to view the radiation field from different angles. As well as observing the dose intensity of the radiation field at different depths, before starting the operation, the user can conduct a preliminary artificial assessment of the safety factor of the operating environment through the observation radiation field model, providing an effective judgment basis for planning a reasonable operation path.

[0061] According to a preferred embodiment, the radiation distribution data in the radiation environment is pre-stored in the dose assessment system, so that the dose assessment system can directly call the existing radiation distribution data when needed. Preferably, the radiation distribution ...

Embodiment 2

[0071] This embodiment is a supplementary description to Embodiment 1, and repeated content will not be repeated.

[0072] According to a preferred implementation manner, when performing dose assessment, the dose assessment system can invoke a three-dimensional scene model and a radiation field model according to the operation path selected by the user.

[0073] According to a preferred embodiment, the user can plan the path of the operation scene, so as to obtain the optimal working path during the operation and reduce the effective dose of the human body 3 . The planning of the optimal working path can be realized by the dose assessment system. Preferably, after loading the 3D scene model and the corresponding radiation field model, the dose assessment system can The scheduled working time calculates the effective dose received by the user during the working process, and simulates at least one working path for the user to choose. Among them, the path with the minimum cumulat...

Embodiment 3

[0079] This embodiment is a supplementary description to Embodiment 2, and repeated content will not be repeated.

[0080] According to a preferred embodiment, the dose assessment system can also call the radiation field model data on the path according to the path selected by the user, and the radiation field model data includes at least the distribution data of the radiation field and the distribution data of the radiation source 1 . Preferably, the dose assessment system can simulate in the three-dimensional scene model the spatial range swept by each organ of the human body 3 following the movement of the human body 3 in the above-mentioned path, and at the same time obtain the time that each organ stays on the path of the unit space and based on The radiation dose rate in this unit space calculates the real-time dose received by the three organs of the human body, and the real-time dose is integrated with time to obtain the cumulative dose.

[0081]According to a preferre...

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Abstract

The invention relates to a nuclear facility decommissioning human body exposure dose evaluation method, which utilizes a dose evaluation system, and the dose evaluation system is used for evaluating the exposure dose of a human body in a nuclear facility decommissioning operation process according to a three-dimensional scene model and a radiation field model called by the dose evaluation system. The dose evaluation method is characterized by comprising the following steps: scanning position information of current equipment to obtain coordinate data of current operated equipment and operating personnel; calling the three-dimensional scene model and the radiation field model based on the coordinate data of the operated equipment; obtaining the nuclear facility disassembly and assembly information correction three-dimensional scene model and the radiation field model in the nuclear decommissioning operation process; and calculating a real-time dose and an accumulated dose received by the operator based on the corrected radiation field model.

Description

technical field [0001] The invention relates to the technical field of radiation protection, in particular to a method for evaluating the exposure dose of decommissioned human bodies in nuclear facilities. Background technique [0002] At present, the world's energy demand is increasing day by day, including my country, which is vigorously promoting clean energy. Among them, nuclear energy, as a high-efficiency and pollution-free energy supply method, is being adopted by more and more countries. my country's nuclear power has become a Zhang's national business card and the construction of domestic nuclear power plants are just in the ascendant. [0003] Nuclear power plants and related nuclear facilities contain radioactivity, which poses potential dangers to humans and the environment. When operating in a radioactive environment, including the maintenance of equipment and facilities, and the dismantling process in the decommissioning of nuclear facilities, the first thing to...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F17/15G06F17/10G06T17/00G01T1/167G06Q10/06
CPCG06F30/20G06T17/00G06F17/15G06F17/10G01T1/167G06Q10/0639
Inventor 周雄姜海涛唐世豪
Owner DMS CORP
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